Driving belt



June 11, 19-40. BRAMMER 2,204,117

' DRIVING BELT Filed Feb. 16, 1938 Patented June 11,1940 i UNITED STATESPATENT OFFlCE DRIVING BELT Harry Brammer, Leeds, England ApplicationFebruary 16, 1938, Serial No. 190,865 In Great Britain February 17, 19379 Claims. (Cl. 74-236) This invention relates to driving belts of theFig. 1 is a perspective view of a portion of a type comprising a numberof superimposed links belt with this invention applied thereto; securedtogether by studs having integral heads. Fig. 2 is a perspective view ofa collar con- The invention especially relates to belts of the structedaccording to the invention; I type described in British Patent No.340,065. In Fig. 3 is a. perspective View from below of the I the saidpatent flexible links are formed with a collar with the locking tonguedepressed;

plurality of holes therein joined by slits and fur- Fig. 4 is aperspective view from above of a nished with a headed stud at one end.The links slightly modified collar; are assembled by passing the headedstuds Fig- 5 is a Pe sp c e ew Of a p o f a through adjacent links untila desired length of belt with a collar having a turned up end and a 10belting is formed. In the above patent the studs collar with a turneddown end applied t e are arranged in a pendant position at the widestFig. 6 is a plan view of a portion of a belt with end of the taperedlinks, but they may be at the link ends recessed to receive a tongue ofa the narrow end to project upwardly. Further, r;

II this invention is not confined to V-belting. Fig. '7 is a plan viewshowin a modification of In belting of the above type the studs assumethe arrangem t in an inclined position and part of the peripheral Fig. 8is a plan View of a double collar for a edge of the stud head is causedto bind against e having de y S Studs; the surface of the adjacent linkwith the result Fig. 9 is a p w Of a'modified double Col- 20. the linkbecomes cut or frayed. To obviate this M;

. it would be necessary to provide large heads on F 10 is a p Vi w O a dfieet on of the the studs to increase the bearing surface. The collar inFi latter construction is not allowable as the head 11 s a p an V ew Ofa Single Collar Wit a must be kept within certain dimensional limitsstud access hole instead of a slot.

relative to the width of the belt so that the heads Figl ShOWS portion oa e t C posed of 25 can be threaded easily through the links duringsuperimposed links I held together by headed assembly and the strengthof the belt mainstuds 2 which are riveted to the narrow ends of tained.the links and threaded up through elongated The object of this inventionis to prevent the holes 3 and forced along the slits 4 or 5 into thesaid damage to the links taking place. stud holes 6 or 1 as the case maybe. 30

According to this invention there is provided in The heads 8 areintegral with the studs I and or for drivingbelts of the above describedtype, the collars 9 located beneath the heads are a collar for theheaded stud of a link, said collar formed of raw hide (or othermaterial) and of being adapted for location between a link and thecircular formation. As shown in Figs. 2 and 3, integral head of the studto form a bearing elea hole 10 is formed in each collar 9 of a size 35 tthat will receive the stud 2 of a belt link i, and a The invention alsoincludes in or for driving slot II is p v extending from the hole It tobelts of the above described type, a collar for 10- e per meter of thecollar. The slot H is of a cation between the integral head of a studand width that will afford passage of the stud 2 to an adjacent link andfurnished with means for the hole It! when locating the collar 9 on astud 40 preventing its rotation when in position, between its head 8 andthe face of a link I. The The invention embraces also a collar having ansides of the slot l l at its outer end are curved to opening for thestud and a stud access slit or facilitate the entrance of a stud 2.

slot leading thereto from the perimeter of the To prevent a collar 9turning round on a stud 2,

collar. a tongue I2 is provided to enter the hole 3 in a 45" Moreoverthe collar may be made of a comlink I. The tongue I2 is formed by makingtwo paratively flexible material having a certain inparallel cuts in thecollar and pressi g the porherent stifiness such as raw hide or metaland tion between the slits to a position at or about a particularly hardhorny raw hide. right angle to the face of the collar.

,0 Further, a collar may be made common to two Each collar 9 is firstmounted on a stud 2 and or more studs and furnished with two or more thetongue H is then pressed down into the hole stud openings for suchpurpose. 3 in the link i when the raw hide collar is moist Referring nowto the accompanying drawing and pliable so that the tongue will hardenin its in which several embodiments of the invention set position.

are shown by way of example only: Further, the collar is adapted topresent an unbroken bearing surface at the point of greatest pressure bythe stud head.

In the modification shown in Fig. 4 the tongue [2a is provided as aprojection from the periphery of the collar.

In Fig. 5 are shown two somewhat similar types of collars 9a, 9b appliedto a belt wherein the ends of the links are straight cut. The collar 9ais cut straight at one end and turned up to form a tongue lib whichabuts against the end of the next link. In the collar 9b the tongue I2?)is turned down over the end of the link the collar rests upon and theslot II is formed parallel with the tongue.

Fig. 6 shows a collar 8 with its tongue turned up into a recess l3 inthe end of the next link, whilst in Fig. '7 the collar has its tongueturned down into the recess 13 in the link upon which the collar rests.In this latter construction the slot H is formed laterally in the link.

Separate fastening means such as nails, clips or the like may beemployed in place of, or additional to, the aforesaid tongues, or thewashers may have no fastening means.

In a further modification shown in Fig. 8 a collar M is made common totwo studs and furnished with an equivalent number of stud holes I0 andaccess slots II which extend from one longitudinal side of the collar.When the slots H extend from the ends of a collar l4, as shown in Fig.9, the collar will require to be bent and sprung into position and willthus be held sesurely in position. If the collar requires to be slidinto position, one hole Illa is elongated, as

' shown in Fig. 10, and is the first to be engaged with a stud 2 whenthe collar may be retracted to engage a second stud 2.

In the modified construction shown in Fig. 11, the access slot formounting a collar 9c upon a 3 stud is dispensed with and the hole H forthe stud is adapted to communicate with a second hole 15 of a diameterthat will permit the passage of the stud head 8. In this manner a collar90 can be slipped over a stud head 8 and slid into position.

When raw hide and like material is employed, the edge or edges of acollar may be chamfered to prevent any fraying or cutting of the beltlinks.

What I claim is:

1. A laminated link driving belt comprising a plurality of linksarranged in successively stepped layers one upon the other with eachlink partially overlapping a next succeeding link, headed fasteningelements having shanks extendin through the overlapped ends of saidlinks, the layered stepped arrangement of said links producing a rockingtendency in said fastening elements when the belt is tensioned, a wearreceiving collar interposed between the head of each of said fasteningelements and the adjacent link surface to form a bearing surfacereceiving the wear from said heads incident to the rocking of saidfastening elements upon tensioning of 'said belt, said wear receivingcollars-being formed to permit ready insertion into or removal thereoffrom position under said heads Without dismantling the belt structure,and means for retaining said wear receiving collars against rotationwhen in position under said heads.

2. A laminated link driving belt comprising a plurality of linksarranged in successively stepped layers one upon the other with eachlink partially overlapping a next succeeding link, headed fasteningelements extending through overlapping ends of said links, the layeredstepped arrangement of said links producing a rocking tendency in saidfastening elements upon tensioning of the belt, a replaceable wearreceiving collar interposed between the head of each fastening elementand the adjacent link surface to form a bearing element for said head,said collars being formed to permit insertion into or removal fromposition under said heads without dismantling the belt structure, andmeans on said collars for engaging a part of said belt structure toprevent rotation of said collars when in position under said heads.

3. In a laminated link driving belt comprising a plurality ofsuperimposed overlapping links arranged in stepped relation, a headedfastening element having a shank portion extending through theoverlapping ends of said links, the stepped overlapping relation of saidlinks producing a rocking tendency in said fastening element upontensioning of said belt, a replaceable A wear receiving collar embracingthe shank of said fastening element between the head thereof and theadjacent link surface to form a bearing element for said head, saidcollar having a radial split for passing said shank to facilitateinsertion of said collar into or removal from position under said head;and means for retaining said collar against rotation when in positionunder said head.

4. In a laminated link driving belt comprising a plurality ofsuperimposed overlapping links arranged in stepped relation, a headedfastening element having a shank portion extending through theoverlapping ends of said links, the stepped overlapping relation of saidlinks producing a rocking tendency in said fastening element upontensioning of said belt, a replaceable wear receiving collar embracingthe shank of said fasthe adjacent link surface to form a bearing ele-'ment for said head, said collar having a radial split for passing saidshank to facilitate insertion of said collar into or removal fromposition under said head, and means on said collar for engaging a partof said belt structure to prevent rotation of said collar when inposition under said head.

5. In a laminated link driving belt comprising a plurality ofsuperimposed overlapping links arranged in stepped relation with the endof each overlapping the end of a succeeding link, a headed stud having ashank portion passing through said overlapping ends, the steppedrelation of said links producing a rocking tendency in said stud upontensioning of said belt, a replaceable Wear receiving collar interposedbetween said head and the adjacent link surface to form a bearingelement for said head, said collar' having one hole therein large enoughto pass the head of said stud and a smaller hole for the normalreception of said shank portion but not large enough to pass said head,said collar being formed to provide a communicating passage between saidholes, and means for retaining said collar against rotation when inposition under said head.

6. In a laminated link driving belt comprising a plurality ofsuperimposed overlapping links arranged in stepped relation with an endof each overlapping an end of a succeeding link, a headed stud having ashank portion passing through said overlapping ends, a replaceable wearreceiving collar interposed between said head and the adjacent linksurface to form a bearing element for said head, said collar having onehole therein large enough to pass the head of said stud and a smallerhole for the normal reception of said shank portion but not large enoughto pass said head, said collars being formed to provide a communicatingpassage between said holes, and means on said collar for engaging a partof said belt structure to prevent rotation of said collar when inposition under said head.

7. In a laminated driving belt comprising a plurality of superimposedoverlapping links arranged successively in stepped relation, a headedfastening element having a shank portion extending through theoverlapping ends of said links, a replaceable wear receiving collarembracing the shank of said fastening element between the head thereofand the adjacent link surface to form a bearing element for said head,said collar having a radial split for passing said shank to facilitateinsertion of said collar into or removal from position under said head,one of said links having a recess adjacent said headed stud and a tongueon said collar for engaging in said recess to prevent rotation of saidcollar on said shank.

8. In a laminated link driving belt comprising a plurality ofsuperimposed overlapping links arranged in stepped relation with an endof each overlapping an end of a succeeding link, a headed stud having ashank portion passing through said overlapping ends, a replaceable wearreceiving collar interposed between said head and the adjacent linksurface to form a bearing element for said head, said collar having onehole therein large enough to pass the head of said stud and a smallerhole for the normal reception of said shank portion but not large enoughto pass said head, said collar being formed to provide a communicatingpassage between said holes, one of said links having a recess adjacentsaid headed stud and a tongue on said collar for engaging in said recessto prevent rotation of said collar on said shank.

9. In a laminated link driving belt comprising a plurality ofsuperimposed overlapping links arranged in stepped relation with an endof each overlapping an end of a succeeding link, and a headed fasteningelement having a shank portion extending through the overlapping ends ofsaid links, a raw-hide collar embracing the shank of said fasteningelement between the head thereof and the adjacent link surface to form

